<template>
    <div>
        <el-upload
            class="avatar-uploader"
            action="http://127.0.0.1:15000/eat-service/osstest/ossupload"
            :show-file-list="false"
            :on-success="handleAvatarSuccess"
            :before-upload="beforeAvatarUpload">
            <img v-if="imageUrl" :src="imageUrl" class="avatar">
            <i v-else class="el-icon-plus avatar-uploader-icon"></i>
        </el-upload>
        <el-button @click="ossUpload">上传</el-button>
    </div>
</template>

<script>
export default {
    data () {
        return {
            imageUrl: '',
            imageFile: File,
        }
    },
    methods: {
        // 上传
        ossUpload () {
            var formdata = new FormData()
            formdata.set('file', this.imageFile, this.imageFile.name)
            this.$axios.post('/eat-service/osstest/ossupload', formdata).then(res => {
                console.log(res.data)
            })
        },
        handleAvatarSuccess(res, file) {
            this.imageUrl = URL.createObjectURL(file.raw);
        },
        beforeAvatarUpload(file) {
            const isJPG = file.type === 'image/jpeg'
			const isPNG = file.type === 'image/png'
			const isLt2M = file.size / 1024 / 1024 < 2
			if (!isJPG && !isPNG) {
				this.$message.error('上传头像图片只能是 JPG 和 PNG 格式!')
			}
			if (!isLt2M) {
				this.$message.error('上传头像图片大小不能超过 2MB!')
			}
            this.imageUrl = URL.createObjectURL(file)
			this.imageFile = file
			return false
        }
    }
}
</script>

<style scoped>
.avatar-uploader .el-upload {
    border: 1px dashed #d9d9d9;
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.avatar-uploader .el-upload:hover {
    border-color: #409EFF;
}
.avatar-uploader-icon {
    font-size: 28px;
    color: #8c939d;
    width: 178px;
    height: 178px;
    line-height: 178px;
    text-align: center;
}
.avatar {
    width: 178px;
    height: 178px;
    display: block;
}
</style>